[llvm-commits] CVS: llvm/lib/Target/README.txt

[Chris Lattner]

Changes in directory llvm/lib/Target:

README.txt updated: 1.20 -> 1.21
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Log message:

add a note


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Diffs of the changes:  (+8 -0)

 README.txt |    8 ++++++++
 1 files changed, 8 insertions(+)


Index: llvm/lib/Target/README.txt
diff -u llvm/lib/Target/README.txt:1.20 llvm/lib/Target/README.txt:1.21
--- llvm/lib/Target/README.txt:1.20	Tue Mar 14 00:57:34 2006
+++ llvm/lib/Target/README.txt	Tue Mar 14 13:31:24 2006
@@ -113,3 +113,11 @@
 
 //===---------------------------------------------------------------------===//
 
+This code:
+int rot(unsigned char b) { int a = ((b>>1) ^ (b<<7)) & 0xff; return a; }
+
+Can be improved in two ways:
+
+1. The instcombiner should eliminate the type conversions.
+2. The X86 backend should turn this into a rotate by one bit.
+